gaussian
enter a value between 1 and 10. this sets the standard deviation of the gaussian
median
enter either 3 or 5. this sets the width of the window the medians are calculated from
bilateral
enter two values between 1 and 300, left and right determine the standard deviation of the spacial gaussian and
intensity gaussian respectively
in general here, higher = more blurred
note: processing times for median and bilateral can be high for larger images
